Home / 57,163.88-78,884.36-31,669.24

Finding the Fourth Proportional to 57,163.88, 78,884.36 and 31,669.24

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Solution

The fourth proportional to 57,163.88, 78,884.36 and 31,669.24 is: 43,702.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,163.88 : 78,884.36 = 31,669.24 : x
  2. Step 2: Convert to fraction form
    57,163.88/78,884.36 = 31,669.24/x
  3. Step 3: Cross multiply
    57,163.88x = 78,884.36 × 31,669.24
  4. Step 4: Simplify right side
    57,163.88x = 2,498,207,729.09
  5. Step 5: Solve for x
    x = 2,498,207,729.09/57,163.88
  6. Step 6: Final answer
    x = 43,702.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.